JLG 742 Specifications
The JLG 742 telehandler is a mid-range, rough-terrain
telescopic handler engineered to deliver strong lifting performance, excellent
reach, and durable job-site functionality for construction crews, industrial
operators, agricultural work environments, and rental fleets.
With a rated lift capacity of 7,000 lb (3,175
kg), a maximum lift height of 42 ft (12.8 m), and a forward reach of 29
ft 1 in (8.86 m), the 742 bridges the gap between compact telehandlers
and heavy-duty lifting machines. Its Cummins Tier 4 Final diesel engine,
powershift transmission, multi-mode steering, and load-sense hydraulic
system give the machine a blend of power, fuel efficiency, and
controllability.
The JLG 742 is built for productivity with proportional joystick
controls, a comfortable ROPS/FOPS-certified cab, optional enclosed cabin
features, and modern diagnostic instrumentation.
Its strong frame design, planetary axles,
wet-disc braking system, and wide selection of attachments make the 742
a flexible machine capable of serving material staging, pallet handling,
elevated loading, structural support tasks, and general job-site
material movement.
The 742 telehandler is powered by the Cummins QSF3.8L
Tier 4 Final diesel engine, a four-cylinder, turbocharged power plant engineered
for reliable torque delivery and emissions compliance.
Engine specifications:
- Engine: Cummins QSF3.8L Tier 4 Final
- Cylinders: 4
- Displacement: 232 cu in / 3.8 L
- Gross power: 74 hp / 55 kW
- Maximum torque: 295 lb-ft / 400 Nm at 2,500 rpm
- Fuel tank capacity: 38.3 gal / 145 L
This engine is widely used across medium-capacity telehandlers due to its
efficiency, robust torque curve, and strong cold-start capability. Routine
servicing includes oil and filter replacement, DEF system checks if applicable,
cooling-system inspection, and air-filtration maintenance.
The JLG 742 features a proven powershift transmission
that delivers rapid directional changes under load and selectable gear ranges
for job-site and travel applications.
Transmission
- Type: Powershift
- Forward gears: 4
- Reverse gears: 3
- Top travel speed: 18 mph / 29 km/h
Axles
- Trunnion-mounted planetary steer axles
- Integral steer cylinder
- High-bias limited-slip differential on front axle
These axles provide excellent torque distribution, terrain adaptability, and
smooth articulation when traveling across uneven ground.
Brakes
- Service brakes: inboard wet disc brakes on front and rear axles
- Parking brakes: wet-disc, spring-applied, hydraulic-release
Wet-disc braking ensures long service life, reduced contamination wear, and
reliable braking performance in harsh job-site conditions.
The electrical system supports essential operating
feedback, lighting, safety indicators, and optional advanced diagnostics.
Electrical instrumentation includes:
- Volt meter
- Hourmeter
- Engine oil pressure gauge
- Temperature gauge
- Fuel gauge
- DEF gauge
Safety and operational electronics support backup alarms, lighting packages,
hydraulic coupler controls, and optional reversing cameras.
Chassis and Drive
System
- Full-time 4-wheel drive
- Robust structural frame engineered for heavy loads under extended reach
- Optional fenders, brick guards, and enclosed cab assemblies
Tires:
- Standard: 370/75-28
- Optional: foam-filled or solid tire configurations
These tire options allow customization for off-road stability, puncture
resistance, or improved flotation depending on job-site requirements.
Operator-selectable steering modes:
- 4-wheel circle steering
- 4-wheel crab steering
- 2-wheel front steering
Hydraulic-assisted steering ensures predictable maneuvering in tight areas and
during precise material placement tasks.
Hydraulic system
features:
- Implement hydraulic capacity: 40 gal / 151.5 L
- Pump type: piston pump
- Load-sense hydraulic system for efficient power management
The hydraulic system powers lift, tilt, extension, and auxiliary attachment
functions. Load-holding valves are integrated for safety when handling elevated
or suspended loads.
Auxiliary hydraulics support attachments such as buckets, grapple tools, and
truss booms.
Cycle Times
- Lift speed (boom retracted): up 11.3 sec, down 9 sec
- Boom extend speed: 11 sec
- Boom retract speed: 11.5 sec
- Rated lift capacity: 7,000 lb / 3,175 kg
- Maximum lift height: 42 ft / 12.8 m
- Load at maximum height: 6,000 lb / 2,722 kg
- Maximum forward reach: 29 ft 1 in / 8.86 m
- Load at maximum reach: 1,000 lb / 454 kg
- Frame leveling: 10°
- Drawbar pull: 19,000 lb / 84.5 kN
- Overall height: 100 in / 2.54 m
- Overall width: 96 in / 2.43 m
- Length (to front of carriage): 227 in / 5.76 m
- Wheelbase: 113 in / 2.87 m
- Ground clearance: 15 in / 381 mm
- Outside turning radius: 12 ft / 3.66 m
- Pallet forks: 2.36 x 4 x 48 in (60 x 102 x 1200 mm)
- Pallet forks: 2.36 x 5 x 48 in (60 x 127 mx 1200 mm)
- Pallet forks: 2.00 x 6 x 72 in (51 mx 152 x 1800 mm)
- Operating weight: 21,476 lb / 9,741 kg
Periodic
maintenance:
- Replace engine oil and filters
- Change fuel filters
- Inspect drivetrain lubrication
- Clean cooling cores
- Replace hydraulic filters and inspect hoses
- Check electronic diagnostics
- Inspect structural weld points and wear pads
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